Plumbing fixture



y 9, 1933. H. w. TEWS 1,907,683

PLUMBING FIXTURE Filed Jan. 28, 1929 Patented May 9, V 1933 UNITED STATES H HE RY w. 'rnws, or MILWAUKEE, wISooNSIN, ASSIGNOR TO nnncrno rnUsnING a Mrs. co, or wns'r ALLIS, wIScoNsI a conronA'rIoN or WISCONSIN PLUMBING. FIXTURE Application filed January 28, 1929'. Serial No. 335,575;

This invention relates to certain new and useful improvements. in pluinbmg fixtures and refers more particularly to flush valves adapted to be operated'by depressing a push Jibutton. p

An object of thisinvention is to simplify theconstruction of flush valvesof the character described and to reduce .the overall dimensions by arranging all of the elements 10 into a compact unitary. structure.

Another object of this invention resides. in the provision of a flush valve of the char-.

acter described having a push button actuated relief valve which is of compact 0011-. struction and is entirely carried by the hood or cover of the device to facilitate assembly.

And a further object of this invention resides in the provision of a flush valve of the character described which is so constructed as to present a pleasing external appearance.

i lVith the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within thescope of the claims.

i In the accompanying drawing, I have illustrated one complete example of the physicalembodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles thereof, and in which:

The single figure is atransverse sectional view through a my. invention.

49 Referring now more particularly to the accompanying drawing, the numeral 5 designates the body or casing of my improved valve, which has an inlet 6 and an outlet v'Z" connected through a valve opening 9 formed in a transverse horizontalwall 10 disposed between :the inlet and outlet. An annular valve seat 11 surrounds theopening 9 at its upper periphery, and is normally engaged by a valve 12 to close the inlet from the outlet. I

plumbing fixture embodying The valve12 hasa valve disc, or thelike, 13 secured to the underside of. the lower flange 14: of a substantially spool shaped plunger 15,.bya retaining member 16 having acentral stud 17 threaded into thetubular stem of the plunger. Radial fins 18 extend from the member l6and project through c the opening 9 when the valve is'seated.

The plunger is slidablein thecasing to I open and close the Valve and is guided for vertical movement by a cup-shaped piston 19, which forms the other flange of the spool, shaped plunger and is slidable in a bore 20 formed in the casing above the wall 10. The piston 19 divides theinterior of the easing into an upper chamber 21- anda lower chamber .22. The lower. chamber 22 is in direct communication with theinlet 5 and,

with the upper chamber 21 througha small bleed opening 23 in the stem of the plunger, so that the fluid enters both chambers .to

equalize the pressure on opposite sides of the piston whereby the valve 12 closes by: gravity and is held closed by the fluid aboveit.

The upper open endof the casing 5 is closed by a hood or cover 24 which issecured thereto by means of screws 25 or the like and is provided with an internal enlargement26 adjacent one side thereof. .A vertical bore 27 extends upwardly into the enlargement to a point inline with a horizontal bore 28 formed in the cover member and with which a by-pass opening 29 communicates. The by-pass opening extends downwardly from the top of the casing to a point whereit communicates with a horizontal bore 30 which connects with the outlet 7 A screw 31 provided with a lock nut 32 is threaded in the outer end of the bore 30 to provide means for controlling; the area of the: by

passage, which thus communicates the-upper chamber 21 with the outlet. I V

The by-passage, however, is normally closed by a relief valve indicated generally as 33, and which. includes a removable valve seat 34: received in a counter-bore 35 formed in the enlargement 26 downwardly of" the urged to closed position by an expansible bore 27 therein, and with which a valve 36 V V is normally engaged. The valve-[1s yieldably spring 37 confined between the valve and the lower end of a cup-shaped housing 38 threaded in the counter-bore 35 with its inner end abutting the valve seat 34. T he lower endof the cup-shaped member 38 and the sidewalls thereof are apertured to provide support 42 extended upwardly from the hood at a point adjacent the stem. The opposite end of the levertl is adapted to be engaged by the short arm 43 of a bell crank lever n pivoted, as at 45, to a second. support l6 eX tended upwardly from the hood member, the end'of the other arm l? of the bell crank lever being engageable by push button 48 whereby depression of the button actuat'es the levers to effect openingof the valve 27. An enclosure l9 carried by the casing encloses the levers and provides means forr'etaining the push button 4-3 in its proper position. It will be noted'that by mounting the relief valve with its axis to one side of the center an arrangement of the levers is facilitated which provides maximum leverage within a comparatively small space.

Furthermore, the cup-shaped construction ofthe piston 19 effects a substantial reduction in the overall hei 'ht of the device by permitting the retaining member 38 to telescope into the piston as it is raised to open the main valve. 7

The operation of the valve is simple and eflicient. When the push button 48 is depressed to open the relief valve. the upper chamber 21 is communicated through the by passage with the outlet 7, thus permitting the. displacement of the fluid therein, the speed of displacement depending upon the setting of the screw 31. The passage of fluid from the upper chamber permits the greater pressure within the lower chamber to raise the plunger and with it open the valve 12 thus affording direct communication between the inlet and outlet. After the initial actuation of the push button 4-8, it is released and the valve 36 closes. he main valve, however, is held open by the discharging fluid until a sufficient quantity has passed through the bleed opening 23 into the upper chamber 21 to equalize the pressure on opposite sides of the piston 19, whereupon the plunger is moved by gravity to close its valve 12.

Fronrthe foregoing description taken'in connection with the accompanying drawing it will be readily apparent to those skilled in the art to which an invention of the character described appertains that I provide an improved flush valve which is extremely simple 7 and effective in its operation and which is of compact construction and has a pleasing appearance.

I claim:

1. In a valve of the character described including a casing having its open top closed by a cover and'having an inlet connected with a source of fluid under'pressure and an outlet normally disconnected from the inlet by a main valve, a plunger movable with valve'seat to close said means, spring means" I yieldably urging the relief valve to its closed position, means carried by the coverfor securing the detachable valve seat in posit-ion and providing a stop for the spring means, a valve stem extended through the cover, lever means engageable with the valve stem, and a push button for actuating the lever means to open the relief valve, opening of the relief valve permitting displacement of the fluid within the upper chamber to effect opening .of the main valve.

2. In a valve ,of the character described, 7

including a casing having an inlet and an outlet adapted to be disconnected by a main valve, a normally closed relief valve, means whereby opening of the relief valve effects the opening of the main valve, .a stem for actuating the relief valve, a lever pivoted adj acent the relief valve stem and engageable therewith, a second lever having one arm engaged with the free end of said first-mentioned lever and pivoted at a point remote from the relief valve stem, and a push button engageable with the free end of the other arm of said second lever whereby pressure on the push button actuates the relief valve stem to open the relief valve.

3. In a valve of the character described, a

casing having an inlet and an outjlet and a piston chamber above the inlet and'in axial alignment with the outlet, a valve member for closing the inlet from the outlet, a piss ton carried by the valve member spaced there from and slidable in the piston chamber to divide the casing ito an upper and a lower a chamber, the lower chamber being connected with a source of fluid under pressure at all times through the inlet, and the upper chamber being communicated with the lower chamber through a-obleed opening to permit fluid to enter the upper ch amber, a removable cover closing the upper chamber, said cover and casing having a passageway; communieating the upper chamber with the outlet and said passageway terminating in a down- .wardly extending bore in the cover, a re- 1,e07,ess I 3 movable valve seat in the bore, a relief valve engageable with the valve seat to normally close the passageway between the upper chamber and the outlet, spring means yieldably urging the relief valve to closed position, a valve stem extending from the relief valve through and having a fluid tight fit in an opening in the cover, lever means on the exterior of the cover for depressing the valve stem to open the relief valve, opening of the relief valve permitting displacement of the fluid within the upper chamber to effect opening of the main valve, and a push button for actuating said lever means.

4. In avalve of the character described having a casing provided with an inlet connected with a source of fluid under pressure, an outlet and a main valve member normally closing the inlet from the outlet and dividing the interior of the casing into an upper chamber and a lower chamber, the lower chamber being connected with the source of fluid under pressure at all times, means permitting the fluid to enter the upper chamber whereby the pressure in both chambers is equal and the valve member is held in closed position by the fluid pressure, a cover for the casing closing the top of its upper chamber, said cover having a fluid chamber,means communicating the casing upper chamber with the outlet to permit the fluid therein to be discharged whereby the fluid pressure in the lower chamber opens the main valve to communicate the inlet and outlet, said means comprising the fluid chamber in the cover, means for communicating said fluid chamber with the outlet, and a normally closed relief valve between the fluid chamber in the cover and the casing upper chamber, a stem on the relief valve projecting through and above the top of the cover at one side of the longitudinal axis of the casing, cooperating lever means pivotally mounted above and from the cover, one of said lever means overlying the projected end of the valve stem, a push button for actuating the lever means to depress the valve stem.

5. In a valve of'the character described,

having a casing provided with an inlet connected with a source of fluid under pressure, an outlet and a main valve normally closing the inlet from the outlet and dividing the interior of thecasing into an upper chamber, the lower chamber being connected with the source of fluid under pressure at all times, means permitting the fluid to enter the upper chamber whereby the pressure in both chambers is equal and the valve member is held closed by the fluid pressure, a cover for the casing and closing the top of the upper chamber, said cover having a fluid chamber, means connecting the upper chamber with the outlet to permit the fluid therein to be disharged whereby the fluid pressure in the lower chamber opens the main valve to communicate the inlet and outlet, said means comprising the fluid chamber in the cover, means for communicating said fluid chamber'with the out- 7 let, and a normally closed relief valve between the fluid chamber in the cover and the casing upper chamber, a stem on the relief valve, projecting through and above the top of the cover, and lever means above the cover and carried thereby for depressing said valve, stem to open the relief valve and a shell enclosing the lever means and slidably mount ing a push button for operative engagement with the lever means.

6. In a valve structure of the character-described, including a casing having an inlet and an outlet adapted tobe disconnected by a main valve, a cover for the casing, a normally closed relief valve carried at the underside of the cover, fluid pressure means to effect opening of the main. valve upon opening of the relief valve, a stem for actuating the relief. valve extending outwardly through and having a fluid tight fit in an opening in' the cover, lever means carried by the top of the cover for depressing the stem to open the reli f valve, a hood adapted to enclose the cover and the lever means, and a push button carried by the hood for actuating the lever means. i

7 In a valve of the character described, including a casing adapted to be filled with fluid and having an inlet and an outlet and a main valve normally closing the inlet from the outlet, a relief valve within the casing which when open effects the opening of the main valve, a stem on the relief valve extend- 1ng externally through one wall of the casing, cooperating levers for depressing the relief valve stem, one of said levers engaging the re- 7 lief valve stem, a push button engaging the other of said levers, said levers providing a mechanical advantage to facilitate opening of the relief valve by actuation of the push button, and means mounting the levers in operative relationship with each other and with said valve stem. 7

. In testimony whereof I have hereunto affixed my signature.

HENRY W, TEWS. 

